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(接上期)2.周围神经系统:包括脑神经、脊神经、植物神经。脑神经—分布于头、面部。脊神经—分布于躯体和四肢。植物神经—分布于内脏、心血管和腺体,其中枢在下丘脑(在皮下)不受人的意志控制。植物神经也称为自主神经系统,它分为交感神经和副交感神经。所有周围神经系统是由脑和脊髓伸出,并延伸分布为两种神经纤维:一是传入神经纤维—将感觉器官的神经冲动传向中枢神经系统;另一是传出神经纤维—把中枢神经系统的信息和冲动传回效应器官。这样,就使遍及全身的神经系统相互联系起来,使人体成为一个完整的统一体。
(Continued) 2. Peripheral nervous system: Including the cranial nerves, spinal nerves, autonomic nerve. Brain - distributed in the head and face. Spinal nerve - distributed in the body and limbs. The autonomic nerves - distributed in the viscera, cardiovascular and glandular organs, are centrally located in the hypothalamus (subcutaneously) uninvolved by human will. The autonomic nerve, also known as the autonomic nervous system, is divided into sympathetic and parasympathetic. All the peripheral nervous system is from the brain and spinal cord, and extended to the distribution of two kinds of nerve fibers: First, the introduction of nerve fibers - the sensory organs of nerve impulses transmitted to the central nervous system; the other is the outgoing nerve fibers - the central Nervous system information and impulse back to effector organs. In this way, the system of nerves throughout the body is interconnected so that the human body becomes a complete unity.